ng_url )
				),
				'state'         => $user->ID,
				'scope'         => $signed_role,
				'user_email'    => $user->user_email,
				'user_login'    => $user->user_login,
				'is_active'     => $this->is_active(), // TODO Deprecate this.
				'jp_version'    => Constants::get_constant( 'JETPACK__VERSION' ),
				'auth_type'     => $auth_type,
				'secret'        => $secrets['secret_1'],
				'blogname'      => get_option( 'blogname' ),
				'site_url'      => site_url(),
				'home_url'      => home_url(),
				'site_icon'     => get_site_icon_url(),
				'site_lang'     => get_locale(),
				'site_created'  => $this->get_assumed_site_creation_date(),
			)
		);

		$body = $this->apply_activation_source_to_args( urlencode_deep( $body ) );

		$api_url = $this->api_url( 'authorize' );

		return add_query_arg( $body, $api_url );
	}

	/**
	 * Authorizes the user by obtaining and storing the user token.
	 *
	 * @param array $data The request data.
	 * @return string|\WP_Error Returns a string on success.
	 *                          Returns a \WP_Error on failure.
	 */
	public function authorize( $data = array() ) {
		/**
		 * Action fired when user authorization starts.
		 *
		 * @since 8.0.0
		 */
		do_action( 'jetpack_authorize_starting' );

		$roles = new Roles();
		$role  = $roles->translate_current_user_to_role();

		if ( ! $role ) {
			return new \WP_Error( 'no_role', 'Invalid request.', 400 );
		}

		$cap = $roles->translate_role_to_cap( $role );
		if ( ! $cap ) {
			return new \WP_Error( 'no_cap', 'Invalid request.', 400 );
		}

		if ( ! empty( $data['error'] ) ) {
			return new \WP_Error( $data['error'], 'Error included in the request.', 400 );
		}

		if ( ! isset( $data['state'] ) ) {
			return new \WP_Error( 'no_state', 'Request must include state.', 400 );
		}

		if ( ! ctype_digit( $data['state'] ) ) {
			return new \WP_Error( $data['error'], 'State must be an integer.', 400 );
		}

		$current_user_id = get_current_user_id();
		if ( $current_user_id !== (int) $data['state'] ) {
			return new \WP_Error( 'wrong_state', 'State does not match current user.', 400 );
		}

		if ( empty( $data['code'] ) ) {
			return new \WP_Error( 'no_code', 'Request must include an authorization code.', 400 );
		}

		$token = $this->get_tokens()->get( $data, $this->api_url( 'token' ) );

		if ( is_wp_error( $token ) ) {
			$code = $token->get_error_code();
			if ( empty( $code ) ) {
				$code = 'invalid_token';
			}
			return new \WP_Error( $code, $token->get_error_message(), 400 );
		}

		if ( ! $token ) {
			return new \WP_Error( 'no_token', 'Error generating token.', 400 );
		}

		$is_connection_owner = ! $this->has_connected_owner();

		$this->get_tokens()->update_user_token( $current_user_id, sprintf( '%s.%d', $token, $current_user_id ), $is_connection_owner );

		/**
		 * Fires after user has successfully received an auth token.
		 *
		 * @since 3.9.0
		 */
		do_action( 'jetpack_user_authorized' );

		if ( ! $is_connection_owner ) {
			/**
			 * Action fired when a secondary user has been authorized.
			 *
			 * @since 8.0.0
			 */
			do_action( 'jetpack_authorize_ending_linked' );
			return 'linked';
		}

		/**
		 * Action fired when the master user has been authorized.
		 *
		 * @since 8.0.0
		 *
		 * @param array $data The request data.
		 */
		do_action( 'jetpack_authorize_ending_authorized', $data );

		\Jetpack_Options::delete_raw_option( 'jetpack_last_connect_url_check' );

		( new Nonce_Handler() )->reschedule();

		return 'authorized';
	}

	/**
	 * Disconnects from the Jetpack servers.
	 * Forgets all connection details and tells the Jetpack servers to do the same.
	 */
	public function disconnect_site() {

	}

	/**
	 * The Base64 Encoding of the SHA1 Hash of the Input.
	 *
	 * @param string $text The string to hash.
	 * @return string
	 */
	public function sha1_base64( $text ) {
		return base64_encode( sha1( $text, true ) ); // phpcs:ignore WordPress.PHP.DiscouragedPHPFunctions.obfuscation_base64_encode
	}

	/**
	 * This function mirrors Jetpack_Data::is_usable_domain() in the WPCOM codebase.
	 *
	 * @param string $domain The domain to check.
	 *
	 * @return bool|WP_Error
	 */
	public function is_usable_domain( $domain ) {

		// If it's empty, just fail out.
		if ( ! $domain ) {
			return new \WP_Error(
				'fail_domain_empty',
				/* translators: %1$s is a domain name. */
				sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is empty.', 'jetpack' ), $domain )
			);
		}

		/**
		 * Skips the usuable domain check when connecting a site.
		 *
		 * Allows site administrators with domains that fail gethostname-based checks to pass the request to WP.com
		 *
		 * @since 4.1.0
		 *
		 * @param bool If the check should be skipped. Default false.
		 */
		if ( apply_filters( 'jetpack_skip_usuable_domain_check', false ) ) {
			return true;
		}

		// None of the explicit localhosts.
		$forbidden_domains = array(
			'wordpress.com',
			'localhost',
			'localhost.localdomain',
			'127.0.0.1',
			'local.wordpress.test',         // VVV pattern.
			'local.wordpress-trunk.test',   // VVV pattern.
			'src.wordpress-develop.test',   // VVV pattern.
			'build.wordpress-develop.test', // VVV pattern.
		);
		if ( in_array( $domain, $forbidden_domains, true ) ) {
			return new \WP_Error(
				'fail_domain_forbidden',
				sprintf(
					/* translators: %1$s is a domain name. */
					__(
						'Domain `%1$s` just failed is_usable_domain check as it is in the forbidden array.',
						'jetpack'
					),
					$domain
				)
			);
		}

		// No .test or .local domains.
		if ( preg_match( '#\.(test|local)$#i', $domain ) ) {
			return new \WP_Error(
				'fail_domain_tld',
				sprintf(
					/* translators: %1$s is a domain name. */
					__(
						'Domain `%1$s` just failed is_usable_domain check as it uses an invalid top level domain.',
						'jetpack'
					),
					$domain
				)
			);
		}

		// No WPCOM subdomains.
		if ( preg_match( '#\.WordPress\.com$#i', $domain ) ) {
			return new \WP_Error(
				'fail_subdomain_wpcom',
				sprintf(
					/* translators: %1$s is a domain name. */
					__(
						'Domain `%1$s` just failed is_usable_domain check as it is a subdomain of WordPress.com.',
						'jetpack'
					),
					$domain
				)
			);
		}

		// If PHP was compiled without support for the Filter module (very edge case).
		if ( ! function_exists( 'filter_var' ) ) {
			// Just pass back true for now, and let wpcom sort it out.
			return true;
		}

		return true;
	}

	/**
	 * Gets the requested token.
	 *
	 * @deprecated 9.5 Use Automattic\Jetpack\Connection\Tokens->get_access_token() instead.
	 *
	 * @param int|false    $user_id   false: Return the Blog Token. int: Return that user's User Token.
	 * @param string|false $token_key If provided, check that the token matches the provided input.
	 * @param bool|true    $suppress_errors If true, return a falsy value when the token isn't found; When false, return a descriptive WP_Error when the token isn't found.
	 *
	 * @return object|false
	 *
	 * @see $this->get_tokens()->get_access_token()
	 */
	public function get_access_token( $user_id = false, $token_key = false, $suppress_errors = true ) {
		_deprecated_function( __METHOD__, 'jetpack-9.5', 'Automattic\\Jetpack\\Connection\\Tokens->get_access_token' );
		return $this->get_tokens()->get_access_token( $user_id, $token_key, $suppress_errors );
	}

	/**
	 * In some setups, $HTTP_RAW_POST_DATA can be emptied during some IXR_Server paths
	 * since it is passed by reference to various methods.
	 * Capture it here so we can verify the signature later.
	 *
	 * @param array $methods an array of available XMLRPC methods.
	 * @return array the same array, since this method doesn't add or remove anything.
	 */
	public function xmlrpc_methods( $methods ) {
		$this->raw_post_data = isset( $GLOBALS['HTTP_RAW_POST_DATA'] ) ? $GLOBALS['HTTP_RAW_POST_DATA'] : null;
		return $methods;
	}

	/**
	 * Resets the raw post data parameter for testing purposes.
	 */
	public function reset_raw_post_data() {
		$this->raw_post_data = null;
	}

	/**
	 * Registering an additional method.
	 *
	 * @param array $methods an array of available XMLRPC methods.
	 * @return array the amended array in case the method is added.
	 */
	public function public_xmlrpc_methods( $methods ) {
		if ( array_key_exists( 'wp.getOptions', $methods ) ) {
			$methods['wp.getOptions'] = array( $this, 'jetpack_get_options' );
		}
		return $methods;
	}

	/**
	 * Handles a getOptions XMLRPC method call.
	 *
	 * @param array $args method call arguments.
	 * @return an amended XMLRPC server options array.
	 */
	public function jetpack_get_options( $args ) {
		global $wp_xmlrpc_server;

		$wp_xmlrpc_server->escape( $args );

		$username = $args[1];
		$password = $args[2];

		$user = $wp_xmlrpc_server->login( $username, $password );
		if ( ! $user ) {
			return $wp_xmlrpc_server->error;
		}

		$options   = array();
		$user_data = $this->get_connected_user_data();
		if ( is_array( $user_data ) ) {
			$options['jetpack_user_id']         = array(
				'desc'     => __( 'The WP.com user ID of the connected user', 'jetpack' ),
				'readonly' => true,
				'value'    => $user_data['ID'],
			);
			$options['jetpack_user_login']      = array(
				'desc'     => __( 'The WP.com username of the connected user', 'jetpack' ),
				'readonly' => true,
				'value'    => $user_data['login'],
			);
			$options['jetpack_user_email']      = array(
				'desc'     => __( 'The WP.com user email of the connected user', 'jetpack' ),
				'readonly' => true,
				'value'    => $user_data['email'],
			);
			$options['jetpack_user_site_count'] = array(
				'desc'     => __( 'The number of sites of the connected WP.com user', 'jetpack' ),
				'readonly' => true,
				'value'    => $user_data['site_count'],
			);
		}
		$wp_xmlrpc_server->blog_options = array_merge( $wp_xmlrpc_server->blog_options, $options );
		$args                           = stripslashes_deep( $args );
		return $wp_xmlrpc_server->wp_getOptions( $args );
	}

	/**
	 * Adds Jetpack-specific options to the output of the XMLRPC options method.
	 *
	 * @param array $options standard Core options.
	 * @return array amended options.
	 */
	public function xmlrpc_options( $options ) {
		$jetpack_client_id = false;
		if ( $this->is_connected() ) {
			$jetpack_client_id = \Jetpack_Options::get_option( 'id' );
		}
		$options['jetpack_version'] = array(
			'desc'     => __( 'Jetpack Plugin Version', 'jetpack' ),
			'readonly' => true,
			'value'    => Constants::get_constant( 'JETPACK__VERSION' ),
		);

		$options['jetpack_client_id'] = array(
			'desc'     => __( 'The Client ID/WP.com Blog ID of this site', 'jetpack' ),
			'readonly' => true,
			'value'    => $jetpack_client_id,
		);
		return $options;
	}

	/**
	 * Resets the saved authentication state in between testing requests.
	 */
	public function reset_saved_auth_state() {
		$this->xmlrpc_verification = null;
	}

	/**
	 * Sign a user role with the master access token.
	 * If not specified, will default to the current user.
	 *
	 * @access public
	 *
	 * @param string $role    User role.
	 * @param int    $user_id ID of the user.
	 * @return string Signed user role.
	 */
	public function sign_role( $role, $user_id = null ) {
		return $this->get_tokens()->sign_role( $role, $user_id );
	}

	/**
	 * Set the plugin instance.
	 *
	 * @param Plugin $plugin_instance The plugin instance.
	 *
	 * @return $this
	 */
	public function set_plugin_instance( Plugin $plugin_instance ) {
		$this->plugin = $plugin_instance;

		return $this;
	}

	/**
	 * Retrieve the plugin management object.
	 *
	 * @return Plugin
	 */
	public function get_plugin() {
		return $this->plugin;
	}

	/**
	 * Get all connected plugins information, excluding those disconnected by user.
	 * WARNING: the method cannot be called until Plugin_Storage::configure is called, which happens on plugins_loaded
	 * Even if you don't use Jetpack Config, it may be introduced later by other plugins,
	 * so please make sure not to run the method too early in the code.
	 *
	 * @return array|WP_Error
	 */
	public function get_connected_plugins() {
		$maybe_plugins = Plugin_Storage::get_all( true );

		if ( $maybe_plugins instanceof WP_Error ) {
			return $maybe_plugins;
		}

		return $maybe_plugins;
	}

	/**
	 * Force plugin disconnect. After its called, the plugin will not be allowed to use the connection.
	 * Note: this method does not remove any access tokens.
	 *
	 * @return bool
	 */
	public function disable_plugin() {
		if ( ! $this->plugin ) {
			return false;
		}

		return $this->plugin->disable();
	}

	/**
	 * Force plugin reconnect after user-initiated disconnect.
	 * After its called, the plugin will be allowed to use the connection again.
	 * Note: this method does not initialize access tokens.
	 *
	 * @return bool
	 */
	public function enable_plugin() {
		if ( ! $this->plugin ) {
			return false;
		}

		return $this->plugin->enable();
	}

	/**
	 * Whether the plugin is allowed to use the connection, or it's been disconnected by user.
	 * If no plugin slug was passed into the constructor, always returns true.
	 *
	 * @return bool
	 */
	public function is_plugin_enabled() {
		if ( ! $this->plugin ) {
			return true;
		}

		return $this->plugin->is_enabled();
	}

	/**
	 * Perform the API request to refresh the blog token.
	 * Note that we are making this request on behalf of the Jetpack master user,
	 * given they were (most probably) the ones that registered the site at the first place.
	 *
	 * @return WP_Error|bool The result of updating the blog_token option.
	 */
	public function refresh_blog_token() {
		( new Tracking() )->record_user_event( 'restore_connection_refresh_blog_token' );

		$blog_id = \Jetpack_Options::get_option( 'id' );
		if ( ! $blog_id ) {
			return new WP_Error( 'site_not_registered', 'Site not registered.' );
		}

		$url     = sprintf(
			'%s/%s/v%s/%s',
			Constants::get_constant( 'JETPACK__WPCOM_JSON_API_BASE' ),
			'wpcom',
			'2',
			'sites/' . $blog_id . '/jetpack-refresh-blog-token'
		);
		$method  = 'POST';
		$user_id = get_current_user_id();

		$response = Client::remote_request( compact( 'url', 'method', 'user_id' ) );

		if ( is_wp_error( $response ) ) {
			return new WP_Error( 'refresh_blog_token_http_request_failed', $response->get_error_message() );
		}

		$code   = wp_remote_retrieve_response_code( $response );
		$entity = wp_remote_retrieve_body( $response );

		if ( $entity ) {
			$json = json_decode( $entity );
		} else {
			$json = false;
		}

		if ( 200 !== $code ) {
			if ( empty( $json->code ) ) {
				return new WP_Error( 'unknown', '', $code );
			}

			/* translators: Error description string. */
			$error_description = isset( $json->message ) ? sprintf( __( 'Error Details: %s', 'jetpack' ), (string) $json->message ) : '';

			return new WP_Error( (string) $json->code, $error_description, $code );
		}

		if ( empty( $json->jetpack_secret ) || ! is_scalar( $json->jetpack_secret ) ) {
			return new WP_Error( 'jetpack_secret', '', $code );
		}

		return $this->get_tokens()->update_blog_token( (string) $json->jetpack_secret );
	}

	/**
	 * Disconnect the user from WP.com, and initiate the reconnect process.
	 *
	 * @return bool
	 */
	public function refresh_user_token() {
		( new Tracking() )->record_user_event( 'restore_connection_refresh_user_token' );
		$this->disconnect_user( null, true );
		return true;
	}

	/**
	 * Fetches a signed token.
	 *
	 * @deprecated 9.5 Use Automattic\Jetpack\Connection\Tokens->get_signed_token() instead.
	 *
	 * @param object $token the token.
	 * @return WP_Error|string a signed token
	 */
	public function get_signed_token( $token ) {
		_deprecated_function( __METHOD__, 'jetpack-9.5', 'Automattic\\Jetpack\\Connection\\Tokens->get_signed_token' );
		return $this->get_tokens()->get_signed_token( $token );
	}

	/**
	 * If the site-level connection is active, add the list of plugins using connection to the heartbeat (except Jetpack itself)
	 *
	 * @param array $stats The Heartbeat stats array.
	 * @return array $stats
	 */
	public function add_stats_to_heartbeat( $stats ) {

		if ( ! $this->is_connected() ) {
			return $stats;
		}

		$active_plugins_using_connection = Plugin_Storage::get_all();
		foreach ( array_keys( $active_plugins_using_connection ) as $plugin_slug ) {
			if ( 'jetpack' !== $plugin_slug ) {
				$stats_group             = isset( $active_plugins_using_connection['jetpack'] ) ? 'combined-connection' : 'standalone-connection';
				$stats[ $stats_group ][] = $plugin_slug;
			}
		}
		return $stats;
	}
}